\begin{tikzpicture}
    \tkzDefPoints{0/0/A, 4/0/B, 5/0/E, 1/2/D, 5/2/C}

    \tkzDrawPolygon(A,B,C,D)
    \tkzDrawSegment(B,E)
    \tkzLabelPoints[below](A,B,E)
    \tkzLabelPoints[above](C,D)
\end{tikzpicture}

